HC Plastics News:

Poly(p-phenylene acetylene) (PPV) polymers have made important contributions to the application of solar energy, sensor technology, and light-emitting diodes due to their electrical and optical properties. To date, PPV (the pendant group is attached to the remainder of the polymer via an oxygen atom) has been in use. Scientists believe that replacing sulfur with sulfur to produce S-PPV will further improve the performance of the material, but the debate is mainly at the theoretical level, because it is considered too difficult to produce S-PPV, not to mention an appropriate cost-effectiveness. The way is for industrial use. Opponents only say half right: achieving this goal is quite difficult, requires years of research, and has experienced many setbacks, but a team of scientists at the Technical University of Vienna, TUWien, discovered a simple and cost-effective way to synthesize S-PPV. .

Red S-PPV polymer

Florian Glöcklhofer, member of the TUWien team at the German Institute of Applied Synthetic Chemistry, said: "PPVs have excellent technical properties. They conduct current and interact with light, which makes them very beneficial for solar cells or LEDs."

TU Wien pointed out in a press release that PPV has a long solid hydrocarbon structure with some side groups attached to it. The electronic properties of the material can be set by selecting different side groups. Replacing the oxygen side groups with sulfur side groups "can improve current transport, which will significantly increase the overall stability of the polymer," Glöcklhofer said.

After about four years of research and experimentation, Glöcklhofer's team discovered a reliable and straightforward way to produce S-PPV, including the use of microwave radiation to produce suitable polymerized monomers. The edge group can then be further modified. “The reaction takes place in a matter of seconds, and the color changes during this process, so you can see how it happened,” Glöcklhofer said.

The synthesis method has been patented and Glöcklhofer is confident in its potential commercial success. Glöcklhofer explains: “This is a simple way to synthesize new polymers with very broad prospects.” This method uses inexpensive base materials and does not require palladium catalysts or similar expensive intermediate steps. “This method can be scaled up in industrial quantities and is easy to replicate. The products offered not only have better electronic properties, but also better stability.” In addition, because S-PPV is biocompatible and non-toxic, it is also Can be used in medicine.

Editor in charge: Yao Chunlin

KONE Escalator Spare Parts

KONE Escalator Spare Parts, KONE Escalator Parts

KONE TravelMasterâ„¢ Escalator

KONE TransitMasterâ„¢ Escalator

KONE Escalator Spare Parts, KONE Escalator Parts

CEP Elevator Products ( China ) Co., Ltd. , https://www.zjelevatortravelingcable.com